Tottenham forward Son Heung Min believes the club’s Europa League showdown with Dortmund is a tie that belongs in the Champions League.

The South Korean 23-year-old returns to Germany with the north Londoners after leaving Bayer Leverkusen for White Hart Lane last summer in a £22million deal.

His side now face a club regarded as the favourites to win the Europa League title.

Son, who played in European football's elite competition with Leverkusen, said: ”I believe that the match between BVB and Tottenham has a Champions League level.

Tricky task: Spurs must beat Borussia Dortmund over two legs to reach the last eight (Image: Christof Koepsel)

"Dortmund are second in Germany, we are in England. I think this game is fun and is still as interesting as many games in the Champions League."

The contest sees a match-up between two sides second in their respective leagues, five points off the leaders. Mauricio Pochettino’s men are five points off Leicester in the Premier League while Dortmund trail Bayern Munich by the same margin in the Bundesliga.

Despite his short spell at Tottenham, Son has revealed he is already committed to Pochettino and the methods that have set up an exciting climax to the club's season.

He added: ”Mauricio Pochettino is outstanding as a coach. His ideas, his tactics. He told me that he wants to make me better and I will follow him in everything.”